It wouldn't make any difference if the server was on 1.4.6. As long as you were on 1.4.7. So did you see the problem with 1.4.7? It might be worth testing the same thing again both with 1.4.6 and 1.4.7, just in case the changes in 1.4.7 caused it.

Peter it's definitely time to engage that crutch fix you had in mind... We're going on months of engines cutting out and postponed tours, while it's made for some amazing hilarious clips. It's also pushed away many members from flying online, ultimately impacting the total number of people beleiving in JFS...

Please consider dedicating full resource to chasing this down. We'd hate to have to explore options due to this only major flaw.

It seems to me that this is not a JoinFS issue, but rather a Carenado issue -- vPilot users were having similar problems and the resolution, as far as I can establish, has been to ensure that Carenado aircraft are not injected as "AI" to represent other users, instead substituting for other models.